noob question here... I have been playing around and trying to fix up roms with clrmamepro to get them to work with either mame4all or advancemame.. however what every I do, most roms will show "file not found" errors... assuming i'm doing something wrong with.dat file because when I went to erase all the roms in the mame4all folder, reboot and the mame4all on the pi still thinks there are 400+ roms there? I think I must have done something wrong with the .dat file. so a couple questions:
1) how do I reset the rom list in mame4all after erasing the roms?
2) what's the best way to get the fight .dat file to use in clrmamepro?

thanks for help in any of the above!